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Nortel Networks 42C4911 manual Using VLANs to Segregate Broadcast Domains

Models: 42C4911

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Alteon OS Application Guide

Using VLANs to Segregate Broadcast Domains

In the previous example, devices that share a common IP network are all in the same broadcast domain. If you want to limit the broadcasts on your network, you could use VLANs to create distinct broadcast domains. For example, as shown in the following procedure, you could cre- ate one VLAN for the client trunks, one for the routers, and one for the servers.

In this example, you are adding to the previous configuration.

1.Determine which switch ports and IP interfaces belong to which VLANs. The following table adds port and VLAN information:

Table 8-3Subnet Routing Example: Optional VLAN Ports

VLAN

Devices

IP Interface

Switch Port

VLAN #

 

 

 

 

 

1

First Floor Client Workstations

2

EXT1

1

 

Second Floor Client Workstations

3

EXT2

1

 

 

 

 

 

2

Primary Default Router

1

EXT3

2

 

Secondary Default Router

1

EXT4

2

 

 

 

 

 

3

Common Servers 1

4

INT5

3

 

Common Servers 2

4

INT6

3

 

 

 

 

 

2.Add the switch ports to their respective VLANs.

The VLANs shown in Table 8-3are configured as follows:

>> # /cfg/l2/vlan 1

(Select VLAN 1)

>> VLAN 1# add port EXT1

(Add port for 1st floor to VLAN 1)

>> VLAN 1# add port EXT2

(Add port for 2nd floor to VLAN 1)

>> VLAN 1# ena

(Enable VLAN 1)

>> VLAN 1# ../VLAN 2

(Select VLAN 2)

>> VLAN 2# add port EXT3

(Add port for default router 1)

>> VLAN 2# add port EXT4

(Add port for default router 2)

>> VLAN 2# ena

(Enable VLAN 2)

>> VLAN 2# ../VLAN 3

(Add port for default router 3)

>> VLAN 3# add port INT5

(Select VLAN 3)

>> VLAN 3# add port INT6

(Select port for common server 1)

>> VLAN 3# ena

(Enable VLAN 3)

150 „ Chapter 8: Basic IP Routing

42C4911, January 2007

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Nortel Networks 42C4911 manual Using VLANs to Segregate Broadcast Domains, Add the switch ports to their respective VLANs
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42C4911 specifications

Nortel Networks 42C4911 is a key hardware component designed to meet the needs of modern telecommunications infrastructure. As part of Nortel's extensive portfolio, the 42C4911 has made a significant impact on network design and operation, particularly in enterprises requiring reliable and efficient communication solutions.

One of the standout features of the 42C4911 is its modularity. This allows for flexible configurations and upgrades, enabling organizations to adapt to changing technology requirements and business demands. The design philosophy behind the 42C4911 emphasizes scalability, allowing users to start with a basic setup and expand it as their networking needs grow. This feature is particularly appealing to medium and large enterprises that anticipate increased data and communication requirements over time.

In terms of technology, the 42C4911 supports various telecommunications standards, making it versatile for multiple applications. It typically integrates with other Nortel equipment and can work with third-party devices, ensuring seamless interoperability across different platforms. This is critical as organizations look to create unified communications systems that can handle voice, data, and video traffic efficiently.

The 42C4911 is known for its robust performance and reliability. It is designed to operate continuously under demanding conditions, which is essential for organizations that rely on constant connectivity for their operations. Its built-in redundancy features help safeguard against potential failures, thus enhancing the overall stability of the network. This reliability is further complemented by Nortel's commitment to high-quality manufacturing standards, ensuring that users receive a durable and efficient product.

Security is another major consideration for any networking device, and the 42C4911 provides advanced security features to protect sensitive data. With increasing cybersecurity threats, organizations prioritize devices that offer strong encryption and access control mechanisms. The 42C4911 addresses these needs while facilitating secure communication channels for users, which is essential in today's increasingly interconnected world.

Overall, the Nortel Networks 42C4911 stands out as a versatile and powerful component in the telecommunications landscape. Its modular design, compatibility with diverse technologies, reliability, and emphasis on security make it an appealing choice for organizations looking to enhance their networks. As companies continue to navigate the complexities of communication, devices like the 42C4911 play a crucial role in ensuring that they remain connected and efficient.